<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div>这是div</div>
    <ul>
        <li>这是li</li>
        <li>这是li</li>
        <li>这是li</li>
        <li>这是li</li>
    </ul>
    <h1>1号标题</h1>
    <h2>2号标题</h2>
    <h3>3号标题</h3>
    <h4>4号标题</h4>
    <strong>这是strong，加粗</strong>
    <span>这是span</span>
    <a href="http://www.baidu.com">这是超链接</a>
    <a href="02_style_demo.html">跳转本地html</a>
</body>
</html>